Final Fantasy XIII-2 Part 11: Dreams & Memories Illusions All

Caius Ballad has revealed to Serah how her meddling with time affects the seeress Yuel and his ultimate goal: to dam the river of time and tear down the foundations of history. To save the seeress Caius is willing to defy all destiny. Serah, having confronted him and failed, is now lost in a blissful ignorance of a dreamworld where all her desires are fulfilled, leaving Caius to continue his mischief through time.